The Japan Series is the championship series of professional baseball in Japan, held annually since 1950. It features the champions of the two major leagues, the Central League and the Pacific League, competing in a best-of-seven format to determine the overall champion of Japanese baseball. The series is organized by the Nippon Professional Baseball (NPB) and typically takes place in late October to early November. The winning team is awarded the Commissioner's Cup, and the series garners significant attention from fans, showcasing the top talent in Japanese baseball.